Greenhouse can play a very important role in planting vegetables or flowers in cold winter. Most of the traditional greenhouses need to be equipped with a variety of constant temperature and humidity electrical appliances, so the investment is large and the energy consumption is also large. So can we guarantee the indoor temperature, light, humidity and other environmental factors at the same time to truly achieve green environmental protection and create an energy-saving greenhouse? It would be even more amazing if the money from building a greenhouse could generate a return and turn consumption into investment!

This is not just a dream. The PV flower house, which perfectly integrates solar power generation and greenhouse building, is built in Zhejiang Vocational and technical college!

There is an ecological garden with a beautiful atmosphere and an area of about 350 square meters between the training building and the library in the first phase of the campus, and the PV greenhouse flower house is located in it. It covers an area of about 50 square meters and integrates sewage treatment and flower planting. It is a PV civil project jointly built by ASP, a governing unit of the association, and Zhejiang Heda Solar Energy Technology Co., Ltd. This small-scale "solar power station", with an installed capacity of 3840 watts and an average annual power generation of about 4000 degrees, was completed in November 2014 and connected to the grid for power generation by the end of December.

The shape of this PV greenhouse is unique. The roof of the utility model has a slope shape and a floor angle of about 30 °. The light transmission of the roof and the surrounding areas is even, which is very beautiful. Ornamental plants such as Canna, Ophiopogon japonicus, rose, clematis, ivy and other ornamental plants are grown in the greenhouse. Indoor plants are equipped with plant LED lights, carbon fiber heating lamps, temperature and humidity controllers, air heaters (cooler), indoor sprayers and other environmental control systems, and monitoring probes are real-time monitoring and remote management. All these electrical equipment can be directly powered by 60 cadmium telluride thin film light transmission modules in the greenhouse.

According to Gang Bao, the sales director of ASP, this PV greenhouse selects the high-efficiency CdTe thin film PV panel developed by the company independently as the solar power generation device, which first ensures the uniform light transmission of the greenhouse; secondly, the battery power generation efficiency is high, even if the light transmission can still reach the installed capacity of 80W per square meter; thirdly, due to the weak light of the product Yes, these PV panels can generate electricity for a long time every day, which can provide more power output; fourth, because of the good surrounding greening and more trees, the greenhouse products have the advantages of good heat spot resistance, so the overall power generation efficiency will not be seriously damaged due to partial shielding, so as to achieve the best power generation.

A 50 square meters PV greenhouse has the effect of reducing carbon dioxide equivalent to about 3000 square meters of afforestation. The PV greenhouse has truly achieved the organic combination of greenhouse seedling cultivation and PV power generation. It is a demonstration to realize the integration of PV buildings and the complementarity of agriculture and light. This is also an innovative experience in Hangzhou, where PV applications are developing rapidly! Does your greenhouse generate electricity?